EP 1645914 A3 20080528 - Magnetic toner
Title (en)
Magnetic toner
Title (de)
Magnetischer Toner
Title (fr)
Révélateur magnétique
Publication
Application
Priority
JP 2004296445 A 20041008
Abstract (en)
[origin: EP1645914A2] According to the present invention, a magnetic toner comprising magnetic toner particles including at least a binder resin and magnetic particles is provided, wherein an isoelectric point of the magnetic particles is pH 4.0 or less, in order to provide a magnetic toner stably having an optimum charged amount regardless of environments so that a high-quality image having high blackness can be formed without causing any ghost phenomenon.
IPC 8 full level
G03G 9/083 (2006.01)
CPC (source: EP US)
G03G 9/0834 (2013.01 - EP US); G03G 9/0836 (2013.01 - EP US); G03G 9/0837 (2013.01 - EP US); G03G 9/0838 (2013.01 - EP US); G03G 9/0839 (2013.01 - EP US); G03G 9/08795 (2013.01 - EP US); G03G 9/08797 (2013.01 - EP US)
Citation (search report)
- [X] US 5688852 A 19971118 - MISAWA HIROMITSU [JP], et al
- [X] EP 1324143 A2 20030702 - TODA KOGYO CORP [JP]
- [PX] US 2004265729 A1 20041230 - PATEL RAJ D [CA]
- [A] EP 1403723 A2 20040331 - CANON KK [JP]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR LV MK YU
DOCDB simple family (publication)
EP 1645914 A2 20060412; EP 1645914 A3 20080528; EP 1645914 B1 20120606; CN 100458575 C 20090204; CN 1758148 A 20060412; US 2006078811 A1 20060413; US 7470494 B2 20081230
DOCDB simple family (application)
EP 05013968 A 20050628; CN 200510113268 A 20050629; US 16850605 A 20050629